This isn't horrible, but it's not exactly good. The same 4 or so frame loop for almost the whole song isn't very creative, and will leave a lot of people bored to the point of leaving. The santa sleigh animation at the start was a 2 frame loop, tweened slightly up and down with a few basic clouds tweened pass.
It basically needs a lot more effort and substance put into it.
But you get a 5, because I've seen a lot worse, and there was obviously *some* effort put into making it.

It wasn't that bad... the beginning with santa's sleigh could have been smoother, the way you had the reigndeer moving looked wierd... But I give you cookies, because I dislike drawing reigndeer and can see you put effort into this. As far as the Santa dancing... meh... It needed more then what it has in here... :D